55366943 has 4 divisors (see below), whose sum is σ = 58623840. Its totient is φ = 52110048.

The previous prime is 55366937. The next prime is 55366951. The reversal of 55366943 is 34966355.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55366943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55366943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55366963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628423 + ... + 1628456.

It is an arithmetic number, because the mean of its divisors is an integer number (14655960).

Almost surely, 2^55366943 is an apocalyptic number.

55366943 is a deficient number, since it is larger than the sum of its proper divisors (3256897).

55366943 is a wasteful number, since it uses less digits than its factorization.

55366943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3256896.

The product of its digits is 291600, while the sum is 41.

The square root of 55366943 is about 7440.8966529579. The cubic root of 55366943 is about 381.1391096290.

The spelling of 55366943 in words is "fifty-five million, three hundred sixty-six thousand, nine hundred forty-three".